BP Plc said on
Monday its plan to nearly double the amount of oil it can capture from the Gulf of Mexico leak will
be delayed for about a week by high waves expected from tropical storm Alex.

With oil spewing into the Gulf since the disaster began on April 20,
BP's current collection system using a drillship and a service rig can
handle up to 28,000 barrels
per day (bpd).

This week's planned addition of another rig to raise that capacity to
53,000 bpd would have to wait until the threat from Alex had passed, said
Kent Wells, BP's senior vice president of exploration and production.

A plan to boost capacity to 80,000 bpd by mid-July remains on track,
Wells told
reporters.

A team of U.S. scientists estimate the leak, one mile under the surface
of the Gulf, is spewing up to 60,000 bpd overall.

Having collection capacity above 60,000 bpd is intended to provide redundancy and have
vessels on hand if a problem erupts at another, according to BP and the
Coast Guard.

Wells said Alex was not expected to interrupt the current oil-capture systems or
the drilling of a
pair of relief wells intended to plug the leak by August.

Alex will likely strengthen into the first hurricane of the Atlantic
season on Tuesday before hitting shore near the Texas-Mexico border
early on Thursday, the U.S.
National Hurricane Center said.

Wells said waves of up to 12 feet could force a week-long delay in
hooking up the third oil-capture system.

Coast Guard AdmiralThad Allen, the
top U.S. official overseeing the spill response, said waves of 5 to 6
feet could impede the ability to load collected oil onto a tanker that ships it to port.

He said 12-foot waves could make the drillship, Transocean Ltd's
Discoverer Enterprise, stop operations.

"We would be concerned around 12 feet for the Enterprise," Allen told a
briefing in New Orleans.

Allen said a storm-related shutdown of the rigs drilling the relief
wells could interrupt those operations for up to two weeks.

Wells said the first of the relief wells, begun on May 2, was within 20
feet of the side of the blown-out well. It will slowly drill another 900
feet to the bottom before intercepting the well so heavy drilling fluid and
cement can be pumped in to plug the leak, he said.

The drillship collects oil from a pipe connected to a containment cap
atop failed equipment called a blowout preventer on the seabed. An
undetermined amount of oil billows out from under the cap and through
vents on top into the sea.

BP said on Monday its capture systems collected or burned off 24,450
barrels of oil on Sunday.